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Show 1877.] MR. G. F. ANGAS ON NEW MARINE SHELLS. 35 one the smallest; outer lip thin, simple, slightly contracted at the base; base rounded, spout-shaped, with a flexuous bend upwards towards the columella, which is a little thickened and reflected below the plaits. MICROVOLUTA AUSTRALIS, n. sp. (Plate V. fig. 2.) Shell ovately fusiform, solid, smooth, shining, with very fine longitudinal lines of growth, white, or ornamented with two rows of distant irregular chestnut blotches and zigzag lines ; spire elevated, apex obtuse, papillary; whorls 5|, slightly convex; aperture narrowly ovate ; outer lip simple, a little contracted below; base rounded ; columella furnished with four prominent transverse plaits. Length 5 lines, diam. 1| line. Hab. Dredged in 25 fathoms water, outside Port-Jackson Heads (Brazier). The deep siphonal notch, and the toothed projection of the base of the pillar, so characteristic of the volutes, are absent in this curious little genus. COLUMBELLA (ANACHIS) SPECIOSA, n. sp. (Plate V. fig. 3.) Shell minute, fusiform, thin, subtransparent, green, ornamented with very fine undulating chestnut lines, and encircled by two bands of irregular square or crescent-shaped opaque white spots; whorls 5, the last longitudinally plicate above, smooth below. Long. 1J, lat. \ line. Hab. Port Jackson (Brazier). A very elegantly painted, minute shell, of great beauty. TURBONILLA FESTIVA, n. sp. (Plate V.. fig. 4.) Shell acuminately turreted, semipellucid, white, ornamented with a narrow pale brown band at the centre of the whorls, two on the last whorl; whorls 8, rather convex, finely longitudinally plicate, the interstices, under the lens, crossed with extremely minute transverse punctured lines ; sutures strongly impressed ; the last whorl smooth at the base ; aperture oblong-ovate ; outer lip simple, arcuate. Length 2 lines, breadth f line. Hab. Port Jackson; deep water (Brazier). CINGULINA BRAZIERI, n. sp. (Plate V. fig. 5.) Shell subulately turreted, moderately thin, whitish, shining; whorls 11, very slightly convex, with three flattened spiral ribs separated by a deep, narrow groove, the lowest rib the broadest; sutures impressed ; base smooth, convex ; aperture subquadrate; outer lip thin, arcuate ; columella straight and slightly thickened. Length 4 lines, breadth 1 line. Hab. Port Jackson. APICALIA GUENTHERI, n. sp. (Plate V. fig. 6.) Shell globosely subulate, thin, subpellucid, shining, horn-coloured, 3* |